Trim stabilizer device having adjustable foil for speed boats

Abstract

A trim stabilizer device to be communicated with a transom of a motor boat includes a foil tiltable around its transversal axis and the foil is structurally independent from the transom. An actuator communicates with the foil for tilting. A slide mechanism communicates with the actuator for making a translatory motion thereof relative to the transom. A disc having at least one guide groove guides the slide member; and a connecting member connects the trim stabilizer device to the transom, the connecting member communicates with the disc.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This Utility Patent Application claims priority to TR 2014 / 07101, filed on Jun. 18, 2014.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH[0002]Not applicable.BACKGROUND OF THE INVENTION[0003]The present invention relates to a trim stabilizer device having a foil for speed boats.[0004]The boat position and particular the trim (pitching) of the boat is crucial in terms of cruising performance and fuel economy. Several factors such as load position, speed, the waves and wind in the sea have an effect on trim in motor boats. When the trim of the motor boat increases in relatively fast cruises, mechanical stresses occur on both the hull and the motor as the rear of the boat hull is dragged with high resistance in the sea.[0005]Trim tabs have long been used in speed boats to stabilize the trim. The trim tabs are mounted to the transom of speed boats and they comprise a plate, the bottom surface of which structurally contacts with water, and a m...

AI Technical Summary

Benefits of technology

The present invention aims to provide better trim control and fuel economy for speed boats. It also aims to make different physically aspect motor boats compatible with trim control. The trim foil can be adjusted to provide different stabilization and buoyancy forces, and it can be safeguarded on shallow water.

Problems solved by technology

However, when trim decreases, as the boat hull will be more in contact with water, the drag and therefore the fuel consumption increase accordingly.

Since the trim tabs of the art are directly communicated with the transom of the boat, water flow along the upper surface of the tab may not be possible.

When no trim stabilization is needed, the trim tabs are lifted to transom level or to a higher level (i.e. above the water level); however, this does not contribute to the fuel economy of the boat.

The trim tab arrangements according to the art do not allow a height adjustment relative to the boat hull.

Furthermore, it may not be possible to tilt trim tabs relative to the transom of the boat.

Therefore, cruising performance and comfort are limited in boats equipped with known trim tabs.

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